package com.rw.tool.util.expression.element;

/**
 * 左括号
 */
public final class LeftParentheses extends Parentheses {
    /**
     * 左括号
     */
    public static final Parentheses LEFT = new LeftParentheses("(", "（", "[", "【", "{", "<");

    private LeftParentheses(String... sign) {
        super(sign);
    }

    @Override
    public String toString() {
        return "(";
    }
}
